makeClassRepresentation {methods}

R Documentation

Create a Class Definition

Description

Constructs a classRepresentation-class object to describe a particular class. Mostly a utility function, but you can call it to create a class definition without assigning it, as setClass would do.

Usage

makeClassRepresentation(name, slots=list(), superClasses=character(),
                        prototype=NULL, package, validity, access,
                        version, sealed, virtual=NA)

Arguments

name	character string name for the class
slots	named list of slot classes as would be supplied to setClass, but without the unnamed arguments for superClasses if any.
superClasses	what classes does this class extend
prototype	an object providing the default data for the class, e.g, the result of a call to prototype.
package	The character string name for the package in which the class will be stored; see getPackageName.
validity	Optional validity method. See validObject, and the discussion of validity methods in the reference.
access	Access information. Not currently used.
version	Optional version key for version control. Currently generated, but not used.
sealed	Is the class sealed? See setClass.
virtual	Is this known to be a virtual class?

References

The R package methods implements, with a few exceptions, the programming interface for classes and methods in the book Programming with Data (John M. Chambers, Springer, 1998), in particular sections 1.6, 2.7, 2.8, and chapters 7 and 8.

While the programming interface for the methods package follows the reference, the R software is an original implementation, so details in the reference that reflect the S4 implementation may appear differently in R. Also, there are extensions to the programming interface developed more recently than the reference. For a discussion of details and ongoing development, see the web page http://developer.r-project.org/methodsPackage.html and the pointers from that page.

See Also

setClass

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